demented
adjective/dɪˈmentɪd/
/dɪˈmentɪd/
- (especially British English) behaving in a crazy way because you are extremely upset or worried
- I've been nearly demented with worry about you.
- The children have driven me demented today.
- He was crashing about the house like a demented animal.
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- (old-fashioned or medical) having dementiaTopics Health problemsc2
Word Originmid 17th cent.: past participle of earlier dement ‘drive mad’, from Old French dementer or late Latin dementare, from demens ‘out of one's mind’.
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